feat: snjs app groups (#468)

* feat: snjs app groups

* fix: update snjs version to point to wip commit

* wip: account switcher

* feat: rename lock manager to auto lock service

* fix: more relevant sign out copy

* chore(deps): update snjs

* fix: use setTimeout instead of setImmediate

* feat: make account switcher expiremental feature

* chore(deps): upgrade snjs

app/assets/javascripts/app.ts

@@ -7,6 +7,7 @@ import angular from 'angular';
 import { configRoutes } from './routes';
 
 import { ApplicationGroup } from './ui_models/application_group';
+import { AccountSwitcher } from './views/account_switcher/account_switcher';
 
 import {
   ApplicationGroupView,
@@ -104,6 +105,7 @@ function startApplication(
   angular
     .module('app')
     .directive('accountMenu', () => new AccountMenu())
+    .directive('accountSwitcher', () => new AccountSwitcher())
     .directive('actionsMenu', () => new ActionsMenu())
     .directive('challengeModal', () => new ChallengeModal())
     .directive('componentModal', () => new ComponentModal())